SGKI-099B Tentacle Pet Kuu-chan: The Youthful Sisters Enchanted by Tentacles, Younger Sister Ruka Edition

Two sisters found a mysterious egg by the roadside. After taking it home, a few days later, it cracked open to reveal a single tentacle that made a cute cooing sound. They named it Ku-chan. And so began their strange yet adorable life with a tentacle pet… But the growth rate of this unusual pet was far beyond anything humans could imagine. Ku-chan grew rapidly into a fully grown creature with no sense of restraint, leaving the sisters at its mercy. Exposed to an unknown milky fluid and awakened to overwhelming sensations, they gradually became captivated by its gentle caresses. Before long, they had been transformed into bodies that could no longer live without tentacle Ku-chan…!? A bizarre and fantastical story depicting the bond between a tentacle pet and two sisters. Next, we bring you the Ruka, the younger sister, edition.